netdev - Re: [PATCH net-next v5 03/16] ceph: Use sendmsg(MSG_SPLICE

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Message-ID: <3068221.1687788027@warthog.procyon.org.uk>
Date: Mon, 26 Jun 2023 15:00:27 +0100
From: David Howells <dhowells@...hat.com>
To: Ilya Dryomov <idryomov@...il.com>
Cc: dhowells@...hat.com, netdev@...r.kernel.org,
    Alexander Duyck <alexander.duyck@...il.com>,
    "David S. Miller" <davem@...emloft.net>,
    Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
    Paolo Abeni <pabeni@...hat.com>,
    Willem de Bruijn <willemdebruijn.kernel@...il.com>,
    David Ahern <dsahern@...nel.org>,
    Matthew Wilcox <willy@...radead.org>, Jens Axboe <axboe@...nel.dk>,
    linux-mm@...ck.org, linux-kernel@...r.kernel.org,
    Xiubo Li <xiubli@...hat.com>, Jeff Layton <jlayton@...nel.org>,
    ceph-devel@...r.kernel.org
Subject: Re: [PATCH net-next v5 03/16] ceph: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage

Ilya Dryomov <idryomov@...il.com> wrote:

> Same here...  I would suggest that you keep ceph_tcp_sendpage() function
> and make only minimal modifications to avoid regressions.

This is now committed to net-next.  I can bring ceph_tcp_sendpage() back into
existence or fix it in place for now if you have a preference.

Note that I'm working on patches to rework the libceph transmission path so
that it isn't dealing with transmitting a single page at a time, but it's not
ready yet.

David